The name Heartbleed OpenSSL Vulnerability (aka Heartbleed bug) is as scary as it sounds. Some reports say up to two thirds of all secure websites (e.g. those with a web address starting with a green https://) are using OpenSSL. It has been reported that Google was first to discover the Heartbleed bug that compromised sites including Yahoo, Tumblr, Flickr, Amazon, and other websites relying on OpenSSL for security. This security breach may provide hackers access to accounts, passwords, and credit card information.